LIQUID POLYMER COMPOSITION

摘要

PURPOSE:To obtain a liquid polymer composition which can give a cured product excellent in mechanical and magnetic properties as well by adding a polyisocyanate compound to a composition comprising a specified liquid polymer and a ferrite. CONSTITUTION:A polyisocyanate compound (e.g. tolylene diisocyanate or diphenylmethane diisocyanate) is added to a composition comprising a hydroxylated liquid diene polymer or its product of hydrogenation (e.g. butadiene homopolymer, butadiene/styrene copolymer or a product of hydrogenation of hydroxy-terminated liquid polybutadiene) and a compound of the formula: MO.Fe2O3 (wherein M is a bivalent metal). In this way, a liquid polymer composition which can give a cured product having excellent mechanical properties and good magnetic properties can be obtained.